A Non-Disclosure Agreement (NDA) — also known as a confidentiality agreement — is a legally binding contract used in Australia to protect sensitive or proprietary information shared between two or more parties. It creates a legal obligation on the Receiving Party to keep the disclosed information confidential and to use it only for the specific purpose set out in the agreement. NDAs are a cornerstone of commercial practice in Australia and are routinely used across every industry sector, from technology and mining to financial services and the creative industries.

Under Australian common law, an NDA is enforceable as a contract provided it meets the basic requirements of offer, acceptance, consideration, and certainty of terms. Unlike some jurisdictions, Australia has no single federal NDA statute; enforceability is governed by the common law of the relevant state or territory, supplemented at the federal level by the Competition and Consumer Act 2010 (Cth) (which may affect unfair contract terms) and the Privacy Act 1988 (Cth) (which applies wherever the Confidential Information includes personal information about identifiable individuals).

In addition to contractual enforcement, Australian law recognises a broader equitable doctrine of confidence — derived from the equity courts and affirmed by the High Court in cases such as Moorgate Tobacco Co Ltd v Philip Morris Ltd (1984) 156 CLR 414 — which may protect confidential information even in the absence of a written agreement. However, a well-drafted NDA provides far greater certainty and enforceability than relying on equitable obligations alone, as it defines precisely what is confidential, how it may be used, and what remedies are available upon breach.

A one-way (unilateral) NDA — such as this template — is appropriate where only one party is sharing information. A mutual NDA is used where both parties will disclose confidential information to each other.

A Non-Disclosure Agreement is appropriate in a wide range of commercial and professional situations in Australia. You should use an NDA whenever you are sharing information that has real commercial value and that you wish to prevent from entering the public domain or being used for any purpose other than the one you have authorised.

The most common circumstances in which an Australian NDA is required include: discussions with a prospective business partner, investor, or joint venture partner before a formal agreement is reached; negotiations for the purchase or sale of a business (due diligence), where the buyer requires access to financial records, customer data, and operational information; engaging contractors, consultants, or freelancers who will have access to proprietary systems, source code, or client information; licensing negotiations where trade secrets or patentable inventions are discussed; and employment relationships where senior employees, executives, or technical staff have access to confidential business strategies.

An NDA is particularly valuable when intellectual property is being shared with a third party prior to a patent application being filed, since disclosure without confidentiality protection can constitute prior art that undermines patent protection under the Patents Act 1990 (Cth). Similarly, in the context of creative industries, NDAs protect undisclosed scripts, concepts, or designs before formal IP protection is sought.

Australian businesses should also consider an NDA in the context of franchise arrangements, where the franchisor's system, manual, and operational procedures are proprietary; and in mergers and acquisitions transactions, where detailed financial, operational, and customer information must be shared during the due diligence process but the transaction may ultimately not proceed.

For situations where both parties will be sharing confidential information with each other — such as in a joint venture or partnership exploration — a mutual NDA provides bilateral protection and avoids the need for two separate one-way agreements.

A well-drafted Non-Disclosure Agreement for use in Australia should contain several key provisions that distinguish it from NDAs used under other legal systems.

The definition of Confidential Information is the most critical clause in any NDA. It should be drafted with sufficient breadth to cover all genuinely sensitive information while being specific enough to give the Receiving Party clear notice of what is protected. Australian courts will scrutinise overly vague definitions, and information that is not adequately described may not receive protection. The definition should clearly state what is excluded — information already in the public domain, information independently developed by the Receiving Party, and information disclosed by a third party without restriction.

The obligations clause sets out precisely what the Receiving Party may and may not do with the Confidential Information. Under Australian law, this typically includes obligations to maintain confidentiality, to use the information only for the specified Purpose, to restrict access to authorised personnel, and to promptly notify the Disclosing Party of any unauthorised disclosure.

The Privacy Act 1988 (Cth) compliance clause is important for Australian NDAs. Where the Confidential Information includes personal information about identified individuals — such as customer lists, employee records, or medical data — the Receiving Party must handle that information in accordance with the 13 Australian Privacy Principles (APPs). APP 6 restricts use and disclosure, APP 8 imposes requirements for cross-border disclosure, and APP 11 requires reasonable security measures.

The governing law and jurisdiction clause must specify an Australian state or territory. Australian courts — including the Federal Court and state Supreme Courts — have broad jurisdiction to enforce NDAs and to grant injunctive relief. The choice of governing state affects which courts will hear disputes and how the NDA is interpreted.

The remedies clause acknowledges that damages alone may be inadequate in the event of a breach and expressly preserves the Disclosing Party’s right to seek injunctive relief from the courts. Australian courts have broad powers to grant both interlocutory and final injunctions to prevent further disclosure of confidential information.